:root {
  --bg: #0f1115;
  --bg-glow: #1b2030;
  --card: #171a21;
  --text: #f2f4f7;
  --muted: #a0a7b4;
  --border: #2a2f3a;
  --accent: #e0483c;
  --accent-hover: #f05a4d;
  --accent-text: #ffffff;
  --error: #ff8f85;
  --focus: #7aa7ff;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
  background:
    radial-gradient(60rem 40rem at 50% -10%, var(--bg-glow), transparent 70%),
    var(--bg);
  color: var(--text);
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

.card {
  width: 100%;
  max-width: 32rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2.5rem 2rem;
  box-shadow: 0 24px 60px rgba(0, 0, 0, .45);
}

.card-header { margin-bottom: 2rem; }

.eyebrow {
  margin: 0 0 .5rem;
  color: var(--accent);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
}

h1 {
  margin: 0 0 .6rem;
  font-size: clamp(1.6rem, 5vw, 2.1rem);
  line-height: 1.2;
  letter-spacing: -.02em;
}

.lead {
  margin: 0;
  color: var(--muted);
}

.field { margin-bottom: 1.4rem; }

fieldset.field {
  border: 0;
  padding: 0;
  margin-inline: 0;
}

label, legend {
  display: block;
  margin-bottom: .4rem;
  padding: 0;
  font-size: .9rem;
  font-weight: 600;
}

.field-hint {
  margin: 0 0 .8rem;
  color: var(--muted);
  font-size: .85rem;
}

input[type="text"],
input[type="email"] {
  width: 100%;
  padding: .8rem .9rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #10131a;
  color: var(--text);
  font: inherit;
  transition: border-color .15s ease;
}

input::placeholder { color: #5f6774; }

input[type="text"]:hover,
input[type="email"]:hover { border-color: #3a4150; }

input:focus-visible,
button:focus-visible,
.genre:focus-within {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

.genres {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(9rem, 1fr));
  gap: .6rem;
}

.genre {
  display: flex;
  align-items: center;
  gap: .6rem;
  margin: 0;
  padding: .7rem .8rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  font-weight: 400;
  cursor: pointer;
  transition: border-color .15s ease, background-color .15s ease;
}

.genre:hover { border-color: #3a4150; }

.genre input {
  width: 1.05rem;
  height: 1.05rem;
  margin: 0;
  accent-color: var(--accent);
  cursor: pointer;
}

.genre.is-disabled {
  opacity: .45;
  cursor: not-allowed;
}

.genre.is-disabled input { cursor: not-allowed; }

.genre.is-selected {
  border-color: var(--accent);
  background: rgba(224, 72, 60, .1);
}

.submit {
  width: 100%;
  margin-top: .4rem;
  padding: .9rem 1rem;
  border: 0;
  border-radius: 10px;
  background: var(--accent);
  color: var(--accent-text);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  transition: background-color .15s ease;
}

.submit:hover { background: var(--accent-hover); }

.submit[disabled] {
  opacity: .65;
  cursor: default;
}

.error {
  margin: .45rem 0 0;
  color: var(--error);
  font-size: .85rem;
}

.consent {
  margin: 1.2rem 0 0;
  color: var(--muted);
  font-size: .8rem;
  text-align: center;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f5f6f8;
    --bg-glow: #e6e9f2;
    --card: #ffffff;
    --text: #16181d;
    --muted: #626a76;
    --border: #dcdfe5;
    --error: #b8342a;
  }

  input[type="text"],
  input[type="email"] { background: #fbfbfc; }

  input::placeholder { color: #9aa1ac; }

  input[type="text"]:hover,
  input[type="email"]:hover,
  .genre:hover { border-color: #b9bec7; }

  .card { box-shadow: 0 16px 40px rgba(20, 24, 33, .1); }
}